Json Level Builder is a data-driven procedural level creation system for Unreal Engine that allows developers to export level layouts into JSON files and regenerate them instantly at runtime.
Design your level visually inside Unreal Engine, tag the actors you want to include, export them as structured JSON data, and recreate the entire layout anywhere another map, another project, or even another machine.
This plugin transforms traditional level design into a portable, shareable, and scalable workflow.
🚀 Core Idea
Build once → Export to JSON → Generate anywhere.
Instead of manually rebuilding environments or hardcoding spawns, Json Level Builder lets you treat levels as data.
Perfect for:
Procedural games
Simulation systems
User-generated content
Runtime world generation
Multiplayer map syncing
Modular environments
✨ Key Features
✅ Tag-Based Export System
✅ Procedural Level Generation
✅ External JSON Support
✅ Runtime & Editor Compatible
✅ Automatic Transform Saving
✅ Class-Based Actor Spawning
✅ SaveGame Directory Integration